Europe's top club competition returns with Matchday 1 spread across September 8-10, the first Champions League nights of the post-World Cup season. The shirt: European kits with fresh sleeve badges debut; Champions League nights are when third kits earn their keep.

Real Madrid host Inter Milan in the Champions League league phase, Matchday 1, at Estadio Santiago Bernabéu in Madrid on Tuesday, September 8, 2026, kickoff 19:00 UTC (9:00 PM local (UTC+2)). The shirt: A Champions League night for both clubs' European kits: Real Madrid at home, Inter Milan on the road.

Borussia Dortmund host Villarreal in the Champions League league phase, Matchday 1, at BVB Stadion Dortmund in Dortmund on Tuesday, September 8, 2026, kickoff 19:00 UTC (9:00 PM local (UTC+2)). The shirt: A Champions League night for both clubs' European kits: Borussia Dortmund at home, Villarreal on the road.

FC Porto host Manchester City in the Champions League league phase, Matchday 1, at Estádio do Dragão in Porto on Tuesday, September 8, 2026, kickoff 19:00 UTC (8:00 PM local (UTC+1)). The shirt: A Champions League night for both clubs' European kits: FC Porto at home, Manchester City on the road.